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Overheating due to coolant loss
I have searched the threads and have some ideas on what to look for but posting this so that others and myself could go through some learning of my process.
First off, this has been really frustrating! I have a brand new engine rebuild do at a local machine shop. New head, new exhaust manifold, new pistons, rings, bearings, heat exchanger, etc. Been through a whole mess of things for since launching my boat with this new engine. Most recently, I am struggling with milky oil and me putting constant antifreeze into the system. Obviously, the antifreeze is getting into the oil at this point. I now have to figure out how/why... I know the typical steps but let me share some of my symptoms: 1. Engine is hard to start. Takes a lot of cranking before running 2. Plugs look black if taken out 3. Runs great after turning on but I have to keep putting af into heat exchanger due to leak Obvious next steps will have to be pressure tests. Could be my water pump...but doubt it since I have the Oberdorfer with the weep hole...but it just seems like the leak is substantial...like I have to fill heat exchanger every 10 mins or it runs dry... Going to boat today but super frustrated at this point...
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1971 Tartan 34C Sloop "NOVA LUNA", Rebuilt (2019) Fresh Water Cooled A4 (Bought boat in 2014) 1968 Tartan 27 Yawl "Destinada", rebuilt Old Lyme freshwater A4 (Sold boat in 2014) Last edited by southcoasting; 08-12-2020 at 08:09 AM. |
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fresh water cooling, fwc, overheating, rebuild |
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